body {
    background-color: #f8f9fa;
    padding-top: 0px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.card {
    border-radius: 15px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.btn-primary {
    background-color: #1877f2;
    border-color: #1877f2;
}

.result-card {
    display: none;
    margin-top: 20px;
}

.download-btn {
    margin-top: 10px;
}

.navbar-brand {
    font-weight: bold;
}

.resolution-badge {
    font-size: 0.8rem;
    margin-left: 10px;
}

.why-us {
    background-color: #fff;
    padding: 40px 0;
    margin: 40px 0;
}

.feature-box {
    text-align: center;
    padding: 20px;
    border-radius: 10px;
    background-color: #f8f9fa;
    height: 100%;
    transition: transform 0.3s;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.feature-icon {
    font-size: 2.5rem;
    color: #1877f2;
    margin-bottom: 15px;
}

footer {
    background-color: #343a40;
    color: white;
    padding: 20px 0;
    margin-top: auto;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    margin: 0 10px;
    text-decoration: none;
}

.footer-links a:hover {
    color: white;
}